Lake Sammamish Half Marathon
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Event details
The Lake Sammamish Half Marathon takes place on March 7, 2026 in Redmond, Washington. The listed race location is 15670 NE 85th St, Redmond, WA 98052. The event offers an in-person Half Marathon and a Virtual Half Marathon. The in-person half has an entry price of $88 and is open to ages 10 and up. The virtual option has a separate fee and limited spots; virtual registration closes February 20, 2026. Additional fees listed include a carbon offset of $0.95, a King County parks surcharge (0.00 + 5%), and a $3.50 tariff fee.
Course and race logistics
The race is a point-to-point course along the paved interurban trail that connects Marymoor Park in Redmond to Lake Sammamish State Park in Issaquah. The course is described as flat and is chip-timed. Aid stations are provided every few miles and supply Clif gels, Nuun, and water. The finish is located by the beach and includes food and music. The event is cupless - participants need a handheld bottle, hydration pack, or a reusable cup (provided at the start line). A half-marathon walk category is offered with a four hour time limit. Virtual participants receive a shirt and medal that will be mailed after the in-person race. Visit the organization's website for the most recent information.
